QCD Sum Rule Approach to the New Mesons and the gDsJDK Coupling Constant
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2007
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| _version_ | 1876488914022170624 |
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| author | Marina Nielsen |
| author_facet | Marina Nielsen |
| contents | QCD Sum Rule Approach to the New Mesons and the gDsJDK Coupling Constant Marina Nielsen Física, Astronomía y Matemáticas QCD Sum Rule We use diquark-antidiquark currents to investigate the masses and partial decay widths of the recently observedmesons D+sJ(2317), D¤00 (2308) and X(3872), considered as four-quark states, in a QCD sum rule approach.In particular we investigate the coupling constant gDsJDK. We found that the gDsJDK obtained in thisfour-quark scenario is smaller than the coupling constant obtained when D+sJ(2317) is considered as a conventionalc ¯ s state. 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437517 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2C Vol.37 |
| format | Artículo científico |
| id | redalyc_46437517 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | QCD Sum Rule Approach to the New Mesons and the gDsJDK Coupling Constant Marina Nielsen Física, Astronomía y Matemáticas QCD Sum Rule QCD Sum Rule Approach to the New Mesons and the gDsJDK Coupling Constant Marina Nielsen Física, Astronomía y Matemáticas QCD Sum Rule We use diquark-antidiquark currents to investigate the masses and partial decay widths of the recently observedmesons D+sJ(2317), D¤00 (2308) and X(3872), considered as four-quark states, in a QCD sum rule approach.In particular we investigate the coupling constant gDsJDK. We found that the gDsJDK obtained in thisfour-quark scenario is smaller than the coupling constant obtained when D+sJ(2317) is considered as a conventionalc ¯ s state. 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437517 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2C Vol.37 |
| title | QCD Sum Rule Approach to the New Mesons and the gDsJDK Coupling Constant |
| topic | Física, Astronomía y Matemáticas QCD Sum Rule |
| url | https://www.redalyc.org/articulo.oa?id=46437517 |